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I love the idea of using this semantic markup and I probably will use much of this tutorial in my next project. However, the only problem is that the font sizes aren’t as scalable as they could be. Tags are only 1 of 6 sizes, so it cannot scale easily. For instance, there may be 1 tag with 5,000 photos under it, and then another tag with 1 photo in it. Using the semantic method of class names, this might only render a small difference between the very differently weighted tags. I am trying to think of a way of doing both a scalable and semantically valid task list.